Citation

Rubin M, Hien D, Das D, Melara R. Brain Sci. 2017; 7(2): e16.

Copyright

(Copyright © 2017, Switzerland Molecular Diversity Preservation International (MDPI) AG)

DOI

10.3390/brainsci7020016

PMID

unavailable

Abstract

This study is the first to explore spontaneous eye blink rate (sEBR) in individuals with post-traumatic stress disorder (PTSD). We investigated the connection between the magnitude of flanker interference in PTSD participants and sEBR during performance on a modified version of the Eriksen flanker task. As a peripheral measure of cognitive control and dopaminergic function, sEBR may illuminate the relationship between PTSD and executive function.

FINDINGS revealed a positive relationship between sEBR and flanker interference in participants diagnosed with PTSD, to both threat-related and neutral stimuli, whereas this relationship was negative in participants exposed to trauma but without PTSD and in healthy controls. Although our results are suggestive of sEBR as a potential physiological index of emotional management in PTSD, most of the correlations were not significant, indicating that further research with a larger sample is needed.

Keywords:
post-traumatic stress disorder; spontaneous eye blink rate; trauma exposure; flanker interference; cognitive control; inhibitory control

Language: en